title: Preoperative measurement of haemoglobin concentration.
abstract: Haemoglobin concentrations were estimated in 1158 patients admitted to hospital for elective surgical procedures. Haemoglobin concentration below 10 g/dl was not seen in male patients who were fit and healthy, or had mild or severe non life threatening systemic diseases. In female patients haemoglobin concentration below 10 g/dl was seen in 0.3% of normal fit healthy patients, 2% of patients with mild systemic diseases, 6.4% of patients with severe, non life threatening diseases, and 18.7% of those with severe incapacitating diseases. Routine haemoglobin measurement is unnecessary in fit healthy patients, or in those with mild systemic disease (American Society of Anesthesiologists grades 1 or 2), but should be done in those with more severe systemic diseases (American Society of Anesthesiologists grades 3, 4 or 5).
authors.affiliation: Craigavon Area Hospital, Northern Ireland.
authors.forename: G J
authors.initials: GJ
authors.lastname: McCleane
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000740:Anemia / Q000097:blood* / Q000175:diagnosis / Q000453:epidemiology; D000776:Anesthesiology / Q000379:methods; D005069:Evaluation Studies as Topic; D005260:Female; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care / Q000592:standards*; D012307:Risk Factors
chemical_list: D006454:Hemoglobins